Twenty One
For controlling flies and lesser mealworm
Powder insecticide with contact and stomach action, designed to combat flies in barns, poultry farms, calves, stables, piggeries and other farm and livestock premises. It works immediately after application and effectively protects the room for at least 3 months. Twenty One is particularly recommended for use in areas where flies accumulate intensively, such as window and door frames, structural columns, external surfaces of tanks and troughs, ceilings, beams and upper parts of the walls.